Combined medical applicator and dilator.



R. W. AMMONS. COMBINED MEDICAL APPLIO'ATOR AND DILATOR.

APPLICATION FILED APR.6, 1911.

1,050,591 Patented Jan. 14, 1913.

UNITED sTA'rEs PATENT OFFICE.

RALPH W. AMMONS, 0]? LOS ANGELES, CALIFORNIA.

COMBINED MEDICAL APPLICATOR AND DILATOR;

To all whom it may concern:

Be it known that I, RALPH W. AMMoNs, a

citizen of the United States, residing at Los Angeles,in' the county ofLos Angeles and State of California, have invented certain new anduseful Improvements in Combined Medical Applicators and Dilators; and Ido declare the following to be afull, clear, and exact description ofthe invention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to improvements in combined medical applicatorsand dilators. One object of theinvention is to provide a medicalapplicator in which the medicine holder may be disconnected andpermitted to remain inserted thus forming a dilator.

Another object is to provide means wherebv the outer end of the medicineholder may be closed when used as a dilator to retain the medicinetherein and opened to receive a fresh supply of medicine withoutremoving the holder from the parts or which may be left open and thusserve as a drain.

Briefly stated the invention consists of a dilator adapted to containmedicine, and provided with a longitudinal passage terminating indiverging discharge openings, a concaved annular flange forming a partof the dilator and provided with a centrally disposed screw threadedopening com-municating with the longitudinal passage and of larger area,a hollow stem having a screw threaded end for detachable engagement withthe screw threaded enlarged end of.

thesaid longitudinal passage, the concaved flange serving to properlydirect the screw threaded end of the stem to its receiving opening whenthe parts are desired to beconnected without removing or changing theposition of the dilator, aplunger slldably located in the stem, andadapted to move in the longitudinal passage of the dilator and close thedischarge openings therein, and means for temporarily and hermeticallysealing the dilator after the stem has been removed therefrom.

With these and other objects in view, the invention consists of certainnovel features J of construction, combination and arrangement of partsas will be more fully described and particularly pointed out the ari- 1is a perspective View of my improved ap- Specification of LettersPatent.

Patented J an. 14, 1913.

Application filed April 6, 1911. Serial No. 619,283.

plicator and dilator; Fig. 2 is a central longitudinal sectional View ofthe same; Fig. 3 is a detail perspective View of the medicine holder ofthe applicator removed from the stem; Fig. 4 is a similar view showingthe manner in which the applicator is arranged for use as a dilator;Fig. 5 is an enlarged vertical section of the same: Fig. 6 is aperspective detail of the outer end of the plunger.

My improvd applicator and dilator comprises a tubular stem or shank 1having on its inner end a milled head 2. The outer end of the stem is'threaded exteriorly as at 17 and onsaid threaded end is adapted to bescrewed a medicine holder 3 said holder also forming a dilator whendetached from the stem as will be hereinafter more fully described. Theholder or dilator 3 has an enlarged substantially elliptical shapedouter end 4 and has on its inner end a guard flange 5 which serves as astop to prevent the instrument from being inserted too far. The flange 5may be of any suitable shape and size to fit the parts to which the sameis applied and is here shown as of circular contour and convex on itsouter face.

In the holder is formed a central longitudinal passage 6 adapted tocontain the medicine to be applied, which passage is of the same size asthe bore of the stem 1 and at its extreme inner end is enlarged andthreaded as 16 to engage the threads 17 at the outer extremity of thestem so that when these two parts are connected the bore of the stem andthe passage inthe holder will be- The medicine inay be in the its outerend with an operating r1ng9 whereby the plunger may be reciprocated Insa d tube and thus force the medicine out of the holder through thedischarge passages 7d1- rectly onto the parts to be treated.

I By preference I form a groove 11 around the plunger 8 near its outerend as best seen 1 holder 3, the threaded portion 16 of said passage isengaged upon the threaded end 17 of the shank 1, the holder insertedinto the part to be treated, and the plunger 8 run up through the shankso as to eject the medieament from the outlets; or if preferred theplunger might be put in before inserting the holder into the opening tobe treated.

By removing the holder 3 from the shank the former may be employed as adilator and,

20 permitted to remain inserted. hen used as a dilator the outerend ofthe same may be closed by a screw plug 10 whereby medicine may beretained in the passage 6 of the dilator and thus keptconst-antlyapplicd to the parts through thedischarges 7. By reffmovingtheplug; 10 more medicine may be inserted in the holder without removingthe same. The dilator when thus arranged may be employed as a drain bysimply removing the thus permitting any discharge to pass out.

' From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation'of the'inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to witli out departing from the prin-;ciple or sacrificing any of the advantages of this invention, as definedin the appended claims.

Having thus described my invention what I claim is 'In a medicalapplicator and dilator the combination with a stem having a screwthreaded upper end, of a medicine container and dilator having a passageway and provided on one end with an enlargement having a plurality ofinclined bores communieating with said passage way, said passageway-being screw threaded at one end so as to be connected to the stem,said dilator having a dished stop flange communicating with said passageway and a plunger movably mounted in said stem and of a length to extendthrough the combined passage ways of said stem and dilaton'saidcontainer being detachable from the stem and adapted to have a plugconnected to the screw threads of the way so. as to close the same.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

RALPH W. AMMONS.

YVitnesses: C. H. CAsn,

WM. HARDCASTLE.

